Apparatus for demodulating and decoding video signals encoded in different formats

In a receiver for adaptively processing an input signal containing data in one of a plurality of different input formats and wherein said data is encoded in one of a plurality of different coding formats, apparatus comprising:

• an adaptive timing recovery network for recovering timing information from said input signal as a function of a received input signal format;
• an adaptive data recovery network responsive to said timing information for recovering said data;
• a selectable slicer network, included in said data recovery network, for applying a set of decision thresholds to data provided by said carrier recovery network to recover said data, said set of decision thresholds being selected from a plurality of sets of decision thresholds suitable for said different input formats;
• and
• an adaptive decoder for selectively decoding said recovered data as a function of a received data coding format to produce recovered and decoded output data.

In a receiver for adaptively processing a carrier modulated with data in one of a plurality of different formats suitable for satellite, terrestrial or cable transmission and wherein said modulating data is encoded in one of a plurality of different formats suitable for satellite, terrestrial or cable transmission, apparatus comprising:

• an adaptive timing recovery network for recovering timing data from said modulated carrier as a function of a received carrier modulation format;
• an adaptive carrier recovery network responsive to said timing data for recovering modulating data from said modulated carrier;
• a selectable slicer network, included in said carrier recovery network, for applying a set of decision thresholds to data provided by said carrier recovery network to recover said modulating data, said set of decision thresholds being selected from a plurality of sets of decision thresholds suitable for said different modulation formats;
• and
• an adaptive decoder for selectively decoding said recovered modulating data as a function of a received data encoding format to produce demodulated and decoded output data.

A receiver for adaptively processing a carrier modulated with video data in one of a plurality of different modulation formats and wherein said modulating video data is encoded in one of a plurality of different formats, comprising:

• an adaptive timing recovery network for recovering timing data from said modulated carrier as a function of a received carrier modulation format;
• an adaptive carrier recovery network responsive to said timing data for recovering modulating data from said modulated carrier;
• a selectable slicer network, included in said carrier recovery network, for applying a set of decision thresholds to data provided by said carrier recovery network to recover said modulating data, said set of decision thresholds being selected from a plurality of sets of decision thresholds suitable for said different modulation formats;
• an adaptive Viterbi decoder for Viterbi decoding said recovered modulating data and providing a Viterbi decoded output as a function of a received data encoding format;
• an adaptive deinterleaver for deinterleaving said Viterbi decoded output and providing an output in accordance with a deinterleaving function selected from a plurality of deinterleaving functions;
• an adaptive error processor for error correcting said deinterleaved output to provide an error corrected output;
• and
• a descrambler for descrambling said error corrected output.